Little Help with Big Slumber Coach

Hi,
I'm a newbie embarking on making a larger version of a slumber coach. I have a 13 foot trailer by 6'4. I'd like to make the side profile to be proportionate as possible to the original. Is there anyone who could easily alter the original design from the library to give me the new demionsions for my sidewalls? Just glancing at it I thought I would go roughly 1.75 times the overall height which should put me around 7' high at the peak. any help or suggestions would be greatly appreciated. I'm hoping to work on it this coming holiday weekend.
Wood Tick
I'm a newbie embarking on making a larger version of a slumber coach. I have a 13 foot trailer by 6'4. I'd like to make the side profile to be proportionate as possible to the original. Is there anyone who could easily alter the original design from the library to give me the new demionsions for my sidewalls? Just glancing at it I thought I would go roughly 1.75 times the overall height which should put me around 7' high at the peak. any help or suggestions would be greatly appreciated. I'm hoping to work on it this coming holiday weekend.
Wood Tick
